High-pressure gradual change forming device for inside of sheet

An internal high-pressure, thin-plate technology, applied in the field of thin-plate internal high-pressure gradual forming devices, can solve the problems of deep-drawing deformation of magnesium alloys, the inability to form large-area complex parts and covers, etc., to achieve good lubricity, uniform force, and surface quality. Good results

Inactive Publication Date: 2010-08-04
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a thin-plate internal high-pressure gradual forming device, which solves the shortcoming

Method used

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  • High-pressure gradual change forming device for inside of sheet
  • High-pressure gradual change forming device for inside of sheet
  • High-pressure gradual change forming device for inside of sheet

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Embodiment Construction

[0021] The embodiments of the present invention will be described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention. Detailed implementation modes and specific operation procedures are given, but the protection scope of the present invention is not limited to the following implementations. example.

[0022] Such as figure 1 with figure 2 As shown, this embodiment includes: an upper mold assembly, a lower mold assembly, a guide mechanism 4, and a pressure plate 7 mechanism, wherein the upper and lower ends of the guide mechanism are movably connected with the upper mold assembly and the lower mold assembly, and the pressure plate 7 The mechanism is movably arranged on the lower mold assembly and faces the upper mold assembly, and the sheet 5 to be pressed is located between the upper mold assembly and the pressing plate 7 mechanism.

[0023] The upper mold assembly includes: an upper mold plate 1, an upper mold frame 2...

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Abstract

The invention relates to a high-pressure gradual change forming device for the inside of sheet, which belongs to the technical field of metal forming. The high-pressure gradual change forming device comprises an upper die assembly, a lower die assembly, a guide mechanism and a plate pressing mechanism, wherein the upper end and the lower end of the guide mechanism are respectively movably connected with the upper die assembly and the lower die assembly; the plate pressing mechanism is movably arranged on the lower die assembly and is directly opposite to the upper die assembly; and the sheet to be pressed is positioned between the upper die assembly and the plate pressing mechanism. A pressure medium is adopted for forming in the forward direction and the backward direction, the forward pressure medium in a lower hydraulic chamber has the effects that force on the sheet is balanced and the imbalanced force on the edge of a rigid convex die can be avoided; and the backward pressure medium in an upper hydraulic chamber has the effect on preventing a part of the sheet contacting a concave die to cause the part of the sheet to be seriously deformed and damaged.

Description

Technical field [0001] The invention relates to a method in the technical field of metal forming, in particular to a high-pressure gradual forming device in a thin plate. Background technique [0002] Magnesium alloy has the advantages of light specific gravity and high specific strength. It has great application potential in aerospace, electronic communication and transportation industries. Magnesium alloys are mainly divided into cast magnesium alloys and wrought magnesium alloys. At present, most magnesium alloy parts are realized by casting method. However, compared with cast magnesium alloy, wrought magnesium alloy has better mechanical properties. Therefore, the development of new wrought magnesium alloy and its deformation process has become a research hotspot of magnesium alloy. [0003] Among wrought magnesium alloys, magnesium alloy sheets are the most widely used, among which sheet deep drawing is a hot spot in the research of magnesium alloy sheets. Mainly, the parts ...

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Application Information

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IPC IPC(8): B21D26/02B21D37/10B21D37/12
Inventor 王锋华靳丽董杰郑兴伟周娜汤晓明丁文江
Owner SHANGHAI JIAO TONG UNIV
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